EP0511485B1 - Arretiereinrichtung für einen Winkelkopf - Google Patents

Arretiereinrichtung für einen Winkelkopf Download PDF

Info

Publication number
EP0511485B1
EP0511485B1 EP92104765A EP92104765A EP0511485B1 EP 0511485 B1 EP0511485 B1 EP 0511485B1 EP 92104765 A EP92104765 A EP 92104765A EP 92104765 A EP92104765 A EP 92104765A EP 0511485 B1 EP0511485 B1 EP 0511485B1
Authority
EP
European Patent Office
Prior art keywords
angle head
locking
bush
balls
pins
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92104765A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0511485A1 (de
Inventor
Manfred Ludwig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
C&E Fein GmbH and Co
Original Assignee
C&E Fein GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by C&E Fein GmbH and Co filed Critical C&E Fein GmbH and Co
Publication of EP0511485A1 publication Critical patent/EP0511485A1/de
Application granted granted Critical
Publication of EP0511485B1 publication Critical patent/EP0511485B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/69—Redundant disconnection blocking means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/59—Manually releaseable latch type
    • Y10T403/591—Manually releaseable latch type having operating mechanism
    • Y10T403/592—Ball detent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/59—Manually releaseable latch type
    • Y10T403/599—Spring biased manipulator

Definitions

  • the invention relates to a locking device for an angle head, which is driven by a drive unit, with a receptacle on which a sleeve for receiving the angle head is rotatably fixed and can be locked in different angular positions.
  • Rod-shaped or pistol-shaped drive units have been used for mechanical screwing for many years, and bits for direct screwing or angular gears can be inserted into the drive socket, which are suitable for screwing that is difficult to access. Instead of screw inserts, other inserts such as drills or the like can of course also be inserted into the drive connector.
  • the angular position of an angle head relative to the drive unit only plays a subordinate role, since the drive unit can be rotated as desired.
  • the angular position of the angle head relative to the drive unit is of particular importance, particularly when using a pistol-shaped drive unit, in order to enable optimal work on parts that are difficult to access.
  • a motor screwdriver with a support handle for supporting the reaction moment in which a releasable locking device is provided between two housing parts, which is controlled depending on the energy supply to the drive unit.
  • the locking device is as a ball ratchet formed with balls, which locks with actuation of the handle of the drive unit with half-shell-shaped locking grooves of the other housing part in order to lock the support handle in the respective angular position.
  • the known device is not suitable for presetting the angular position of an angular head with respect to the drive unit.
  • the invention is therefore based on the object of creating a locking device for an angular head of the type mentioned, which avoids the disadvantages of the prior art and the simplest possible adjustment of the angular position of the angular head in allowed with respect to the drive unit, and enables further functional improvements.
  • a locking mechanism is provided in a locking device according to the type mentioned between the bush and the receiving socket for locking the angle head at the predetermined angular positions, which consists of a plurality of balls, each via axially movable pins in Longitudinal grooves can be locked in that an axially movable operating ring is provided for releasing and locking the ball lock, with which the pins are rigidly connected, and that the operating ring is spring-loaded in the axial direction for locking the balls.
  • an adjustment of the angle head is made possible by operating an operating ring.
  • the operating ring can be arranged such that the adjustment of the angular position can be achieved by one-hand operation. Only an axial displacement of the operating ring allows the locking mechanism to be locked and released to adjust the angular position of the angular head.
  • the operating ring is normally under the action of the spring force in a position in which the ball lock is locked and the angular head is thus locked in a predetermined angular position.
  • the operating ring is axially displaced against the spring force, thereby releasing the ball lock and thus allowing the angular position to be adjusted.
  • the ball lock locks automatically as soon as the balls engage in the corresponding longitudinal grooves when the angle head is turned further.
  • the balls are held radially displaceably in radial bores of the bush.
  • This measure has the advantage that, in conjunction with the axially movable pins, a particularly simple construction and reliable function is ensured even in continuous operation and with strongly fluctuating loads.
  • the longitudinal grooves are provided on the outer surface of the receptacle and the pins are acted upon by compression springs in the direction of the angle head.
  • the operation is facilitated in that the operating ring for releasing the ball lock only has to be pulled back in the direction of the drive unit, on which the device is usually held by a correspondingly shaped handle.
  • the compression springs are designed as helical springs which are axially penetrated by the pins, the compression springs each being enclosed between a collar of the pin and an annular shoulder of the bush on the drive side.
  • the bushing has an external thread for screwing to the angle head.
  • an adapter bell is provided which can be screwed on the drive side to the sleeve and on the angle head side to the angle head.
  • angular heads with a considerably smaller diameter can thus be locked in a preselected angular position with the same locking device on the receiving connector of the drive unit.
  • Fig. 1 shows a conventional drive unit 1 in the form of a pistol, from which a receptacle 2 protrudes forward, within which a driven stub shaft is provided.
  • a locking device according to the invention generally designated 3 and shown schematically in FIG. 1a, can be screwed onto the connecting piece 2.
  • the locking device according to FIG. 1a has an external thread for screwing with an angle head 10 according to FIG. 1b. If smaller angle heads 11 are to be used, an adapter bell 12 according to FIG. 1 c is first screwed onto the external thread of the locking device 3 and has a suitable threaded section for receiving the angle head 11.
  • the structure of the locking device is shown in detail in Figures 2 and 3.
  • the receptacle 2 protruding from the housing of the drive unit 1 has in its central region an externally threaded section 33, onto which an annular sleeve 31 can be screwed.
  • a total of six longitudinal grooves 29 extend in the peripheral surface of the receptacle 2, which begin at the free end of the receptacle and approximately after a third of the receptacle 2 leak outwards.
  • a ball 25 is held, which is radially movable in a radial bore 36 of the sleeve 31.
  • the balls 25 are secured against falling outwards by an O-ring 26.
  • the balls 25 are also assigned axially displaceable pins 21 in the sleeve 31, which secure the balls 25 with their pin end 35 on the angle head side in the locking position shown in FIG. 2 from the outside in their bores 36 and thus via the balls 25 and the grooves 29 Ensure that the bushing 31 is locked in a certain angular position with respect to the socket 2.
  • the bushing 31 rests with its drive-side end face 37 against an operating ring 20 into which the pins 21 protrude and are rigidly connected to the latter.
  • a helical spring 24 is also arranged on each pin 21, which is supported at the end on the angle head side on a collar 27 of the pin 21 and bears against an annular shoulder 28 of the sleeve at its drive-side end.
  • the springs 24 thus result in a spring action on the operating ring 20 in the direction of the sleeve 31, so that the operating ring normally rests on the radial end face 37 of the sleeve 31 and can be retracted against the spring force in the direction of the drive unit.
  • the pin ends 35 release the balls 25, so that they are only secured to the outside by the O-ring 26. If the bushing 31 is now rotated on the thread 33 of the receiving socket 2, the balls 25 slide laterally out of the longitudinal grooves 29 until they engage in adjacent longitudinal grooves and are secured again by the pin ends 35 when the operating ring 20 is released.
  • the number of locking positions of the sleeve on the socket is included by the number of longitudinal grooves 29 - six in the exemplary embodiment shown. Of course, a larger or smaller number can also be provided. If the receptacle has, for example, twelve longitudinal grooves, the sleeve can be rotated and locked in relation to the receptacle by 30 ° or a multiple thereof.
  • a ball with pin and spring does not have to be assigned to each longitudinal groove in order to keep the construction simple.
  • three balls with associated pins and springs are sufficient, which are arranged in the bush rotated by 120 ° with respect to each other.
  • An externally threaded section 30 is provided on the sleeve 31, onto which an angle head 10 can be screwed, as is shown in the lower half of FIG. 2.
  • the adapter bell 12 is provided for its adaptation, which is screwed onto the externally threaded section 30 of the bush 31.
  • the adapter bell 12 is tapered to the desired diameter and provided with a suitable external thread 32, onto which the angle head 11 can be screwed.
  • the shaft end 22 is provided, which is arranged within the receptacle 2.
  • the end of the stub shaft 22 is designed as a coupling 23, into which the shaft head drive 34 can be inserted for a positive connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Clamps And Clips (AREA)
  • Drilling And Boring (AREA)
  • Portable Power Tools In General (AREA)
EP92104765A 1991-04-29 1992-03-19 Arretiereinrichtung für einen Winkelkopf Expired - Lifetime EP0511485B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4113951 1991-04-29
DE4113951A DE4113951C1 (ja) 1991-04-29 1991-04-29

Publications (2)

Publication Number Publication Date
EP0511485A1 EP0511485A1 (de) 1992-11-04
EP0511485B1 true EP0511485B1 (de) 1996-07-17

Family

ID=6430588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92104765A Expired - Lifetime EP0511485B1 (de) 1991-04-29 1992-03-19 Arretiereinrichtung für einen Winkelkopf

Country Status (4)

Country Link
US (1) US5207528A (ja)
EP (1) EP0511485B1 (ja)
JP (1) JPH05212687A (ja)
DE (2) DE4113951C1 (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704793B1 (fr) * 1993-05-06 1995-07-21 Maire Charles Ets Outil pneumatique.
SE503326C2 (sv) * 1994-07-08 1996-05-28 Atlas Copco Tools Ab Vinkelmutterdragare
DE29705155U1 (de) * 1997-03-21 1997-05-15 Hans Sauer GmbH, 22339 Hamburg Handarbeitsmaschine
DE29705156U1 (de) * 1997-03-21 1997-05-15 Hans Sauer GmbH, 22339 Hamburg Handarbeitsmaschine
DE10254829A1 (de) * 2002-11-25 2004-06-03 Robert Bosch Gmbh Elektrohandwerkzeugmaschine
ATE488335T1 (de) * 2004-05-18 2010-12-15 Bl Autotec Ltd Masterplatte und werkzeugplatte für roboterarmkoppelvorrichtung und roboterarmkoppelvorrichtung
DE102005021795A1 (de) * 2005-05-11 2006-11-23 E. Zoller GmbH & Co. KG Einstell- und Messgeräte Vorsatzhalter
FR2889985B1 (fr) * 2005-09-01 2007-11-09 Georges Renault Soc Par Action Ensemble d'outillage incluant une tete d'outil comprenant des moyens de positionnement angulaire de son arbre de transmission par rapport a un arbre moteur, et tete d'outil correspondante
DE102007057288A1 (de) * 2007-11-28 2009-06-10 Siemens Ag Verriegelungsmechanismus und Verriegelungsvorrichtung
WO2011148241A2 (en) 2010-05-24 2011-12-01 Samarth Malhotra Safely disposable cannula device
DE102012020035B4 (de) 2011-10-18 2013-09-05 Cahit Kirmit Vorsatzsystem und Werkzeugantrieb mit einem solchen Vorsatzsystem
CN203665475U (zh) * 2013-12-19 2014-06-25 麦太保电动工具(中国)有限公司 用于连接电动工具与转角器的连接装置
DE102014224591A1 (de) * 2014-05-07 2015-11-12 Robert Bosch Gmbh Werkzeugvorsatz sowie Werkzeugsystem
CN111570866A (zh) * 2019-02-19 2020-08-25 成都飞机工业（集团）有限责任公司 一种角度头锁紧装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501581A (en) * 1946-05-06 1950-03-21 Joseph V Rieger Hinge joint
US2771647A (en) * 1953-06-09 1956-11-27 Albert B Hemstreet Locking means for centrifugal molds
US3180435A (en) * 1962-05-25 1965-04-27 Chicago Pneumatic Tool Co Socket retainer for impact wrench
US3789706A (en) * 1972-06-26 1974-02-05 Dresser Ind Nut collecting and retaining socket for power tools
US4155278A (en) * 1977-09-06 1979-05-22 Cooper Industries, Inc. Swivel head reaction bar nut runner
SE427811B (sv) * 1981-11-23 1983-05-09 Atlas Copco Ab Skruvdragare med reaktionsmomentupptagande organ
US4463632A (en) * 1982-09-29 1984-08-07 Parke W Rod Tool having locking device for rotatable head
DE3344600C2 (de) * 1983-12-09 1986-06-19 Helfer & Co KG, 3260 Rinteln Schraubkopf
FR2588116B1 (fr) * 1985-10-01 1988-01-08 Framatome Sa Dispositif de verrouillage d'une bague de guidage sur une plaque comportant une ouverture et son application a un tube guide de reacteur nucleaire
US5020281A (en) * 1989-04-03 1991-06-04 American Pneumatic Technologies, Inc. High speed rotary hand tool with adjustable head coupling

Also Published As

Publication number Publication date
JPH05212687A (ja) 1993-08-24
DE59206768D1 (de) 1996-08-22
US5207528A (en) 1993-05-04
EP0511485A1 (de) 1992-11-04
DE4113951C1 (ja) 1992-11-26

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